Hi Dave, Thank you for hyour response. it seems now that the problem is an electrical sensor. Diagnostics show that the "DSC not Available" followed by the "ABS Fault" warning light is then sequentially followed by "Gearbox Fault".
The diagnostic shows that the problem in this case is a broken ABS sensor on the rear o/side wheel. I am having it replaced tomorrow and am assured all will be well..........................
I will keep you posted and thanks again for your prepardness to investigate this further with me. Kind Regards
Dominic